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<H2><A NAME="SECTION03514000000000000000"></A><A NAME="subsecoptionargs"></A>
<BR>
Option Arguments
</H2>

<P>
Arguments<A NAME="19494"></A> specifying options are 
usually of type CHARACTER*1.
The meaning of each valid value is given<A NAME="19495"></A>, as in this 
example:

<P>
<DIV ALIGN="CENTER">
</DIV><TABLE  WIDTH="547">
<TR><TD>


<DT>UPLO   

<DL COMPACT><DD>(input) CHARACTER*1 
<BR>
            = 'U':  Upper triangle of A is stored;
 
<BR>         = 'L':  Lower triangle of A is stored.

</DL>
</TD></TR>
</TABLE>
<DIV ALIGN="CENTER">
</DIV>

<P>
The corresponding lower-case characters
may be supplied (with the same meaning), but any other value is illegal
(see subsection&nbsp;<A HREF="node119.html#subsecinfo">5.1.9</A>).

<P>
A longer
character string can be passed as the actual argument, making the calling
program more readable, but only the first character is significant;
this is a standard feature of Fortran 77.
For example:

<P>
<PRE>
       CALL SPOTRS('upper', . . . )
</PRE>

<P>
<BR><HR>
<ADDRESS>
<I>Susan Blackford</I>
<BR><I>1999-10-01</I>
</ADDRESS>
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